Scope and Contents: The collection documents the construction and rehabilitation of the X-ray Clinic, located in Overtown Miami, and the career of Samuel Hensdale Johnson (8 Jan 1900 - 1987), South Florida's first black radiologist and proprietor of the X-Ray Clinic.  The Clinic was built for Dr. Johnson in 1939 by architect Barker and contractors Godfrey C. Scovello and H. S. Braggs for $5,000. Johnson started practising radiology as a general practitioner at 1004 N.W. 1st Court, in Miami's black business and entertainment district, Overtown.  He practiced at the X-Ray Clinic until 1967 and retired in 1974.  In 1980, the deed for the X-Ray Clinic was signed over to the Black Archives Foundation, at which time rehabilitation was begun. The collection contains correspondence, financial records, property records, building permits, and photographs and slides of the clinic taken before and after it was rehabilitated.